Maybe they simply banned some user agents commonly used by IA scrapers.
You can actually use Traefik to do something similar using its Docker service discovery. Instead of being a SOCKS proxy, Traefik is a reverse proxy, and you can combine with `lvh.me` which resolves all subdomains to localhost. I don't use this technique any more, but a functional example command can be seen here: https://github.com/CGamesPlay/dotfiles/blob/c49e2b4ddd0fe591...
To show the other side of the coin: SOCKS proxies are less convenient, as they require you to configure your entire browser (your entire system on macOS) to use it.